Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ff891d32c65c720…

MALICIOUS

PDF

35.4 KB Created: 2021-06-20 11:24:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5ac15dd05308ec788e5f442cc9c79e2c SHA-1: 108434cd30e9b771ab05ad9468c12f9e304c0797 SHA-256: 3ff891d32c65c72005e37a05bdb288c8fe8f107cae0226a8d17185acbb9e9ce5
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple embedded URLs pointing to sites offering hacks and generators for popular games, indicating a lure for potentially unwanted or malicious downloads. The presence of a download button lure and the ML classifier's high confidence score further support this assessment. No scripts were extracted, but the document's structure and content strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-get-free-robux-no-inspect-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/pokemon-go-free-nickname_GM1094591345.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-any-costume-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-roblox-noclip-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-cheat-engine-god-mode_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-promote-group-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000333c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333C 22404 bytes
SHA-256: 4d5d5f5515875d30a9fdb6a8f64155a64094b3ab028d4befc05bed6c813eb1e0
font_01_sfnt_off00006500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6500 19160 bytes
SHA-256: d2e4624bf494558a430af34a99ea3a6c0be560c6504d93f71a07a45284a1bec8

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